Homework 2
1. This problem will be performed in R using the R commands.
(a) To fit a simple linear regression model relating games won (y) to yards gained rushing by
opponents (x8 ), we first need to visualize the data and see whether a linear relationshi
Homework 1
1. We have the following model
yi = 0 + 1 xi i , i = 1, 2, ., n,
where
yi is the response, that is the production after taking a training for the ith person
0 , 1 are the unknown parameters, the regression coefficients
xi is the predictor va
Homework 2
Due 09/07/2016
1. Problem 2.1: Table B.1 gives data concerning the performance of the 26 National Football
League teams in 1976. It is suspected that the number of yards gained rushing by opponents
(x8 ) has an effect on the number of games won
Review for Midterm 1
1. The flow rate y (m3 /min) in a device used for air-quality measurement depends on the pressure drop x
(in. of water) across the devices filter. Suppose that for x values between 5 and 20, the two variables
are related according to
Review for Midterm 1
1. The flow rate y (m3 /min) in a device used for air-quality measurement depends on the pressure drop x
(in. of water) across the devices filter. Suppose that for x values between 5 and 20, the two variables
are related according to
Homework 1: Due 08/31/2016
1. Problem 1.11 from KNNL book: The regression function relating production
output by an employee after taking a training program (y) to the production output
before the training program
1
Chapter 2: Simple Linear Regression
The model: y = 0 + 1 x + , where y is the response variable, 0 and 1 are the unknown regression coefficients,
x is the predictor variable, assumed to be constant, and are uncorrelated and normally distributed errors
STA 4033
Mathematical Statistics
with Computer Applications
Lecture 16
Brett Presnell
Department of Statistics
University of Florida
11 June 2001
Contents
6.3 Formulas for the LSEs . . . . . . . . . . . .
6.4 Standard Errors and Estimating the Variance
6.
Midterm 1 - 09/28/2016
Name:
ID:
Problem 1:
Problem 2:
Problem 3:
Problem 4:
Problem 5:
Bonus points
Total:
out
out
out
out
out
of
of
of
of
of
20
18
40
12
10
out of 100
1. This test consists of 10 pages. Check that you have all pages. The tables are provi